The NSG has told the Delhi police that the IED recovered recently from the Ghazipur flower market had a timer device attached to it and had ammonium nitrate and RDX, which was used in several Mumbai blasts, as its components, official sources said on Monday.

The federal counter-terrorist commando force had sent experts from its National Bomb Data Centre (NBDC) based in Haryana’s Manesar to defuse the improvised explosive device that was recovered on January 14.